Marine Formula is a specially formulated patented mixture that cleans and removes adhesives and sealants used on and inside the boat. Use Marine Formula to clean up and remove these common marine adhesives and sealants. Cured 3M 5200, polysulfide sealants and other polyurethane adhesives. Removes caulks, sealants, black rub marks, adhesive residue, liquid nails, graffiti and overspray. Cleans adhesive film from duct and masking tape. Will not harm: Gelcoat, Clear Coat, Plexiglass, AwlGrip or Imron. 5 oz. aerosol can.